Guide
What Is Diamond Core Drilling?
How diamond core drilling works, what materials it cuts, UK applications, equipment required, and when to hire a specialist contractor.
Read GuideDiamond Core Drill Guides & Tips – UK Trade Blog
Practical diamond core drilling guides for UK tradespeople — bit sizes, wet vs dry drilling, boiler flues, waste pipes, and machine comparisons. No manufacturer spin.
These guides cover the specific technical questions that come up on UK trade jobs — the kind that don't appear in product manuals and rarely have a single clear answer in forum threads. Each article is written from a UK trade perspective, referencing UK building materials (sand-lime brick, AAC block, dense concrete), UK pipe standards (110mm soil, 40mm waste), and UK hire and purchase prices.
Guide
Dry vs Wet Core Drilling
When do you need water cooling? Material breakdown: brick, blockwork, dense concrete, and reinforced concrete explained.
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Reference
Core Drill Bit Sizes UK
Complete diameter chart for UK applications: boiler flues, waste pipes, extractor fans, and cable entries.
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Comparison
TCT vs Diamond Core Drill
Which bit type is right for your material? Performance comparison across brick, block, concrete, and engineering brick.
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How-To
How to Use a Diamond Core Drill
Setup, pilot drill technique, RPM settings, cooling method, and depth extensions — step by step for UK tradespeople.
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Spec Guide
Boiler Flue Core Drill Size
Condensing boilers, twin-pipe flues, and liner systems — which bit size, and why drill direction matters for clean results.
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Cost Guide
Hire vs Buy a Core Drill
UK day rates, purchase prices, and break-even points. When hiring makes sense and when buying pays off for trade use.
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Cost Guide
How Much Does Core Drilling Cost?
Professional contractor call-outs, per-hole rates, and commercial day rates. Cost by application type — boiler flues to structural concrete.
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Technical
Drilling Reinforced Concrete
Bond hardness selection, rebar-rated bits, machine torque, and water supply setup for coring through steel and concrete.
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Safety
GPR Scanning Before Core Drilling
What GPR and ferroscan detect, when scanning is required, and why post-tension tendons make it non-negotiable on structural concrete.
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Comparison
SDS Plus vs SDS Max for Core Drilling
Adaptor compatibility, size limits, torque ratings, and when a dedicated core drill motor is the safer choice.
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Spec Guide
Core Drill Size for Extractor Fans
107mm, 133mm, or 160mm — the correct core drill diameter for 100mm, 125mm, and 150mm extractor fan spigots, with cavity wall technique.
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Spec Guide
Core Drill Size for Waste Pipes
110mm soil stack needs 125mm, 40mm waste needs 55mm — full UK table for all drain and waste pipe diameters with Part H notes.
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Maintenance
Diamond Core Drill Bit Maintenance
How to spot glazing early, dress a diamond bit back to cutting condition, and store bits so they last significantly longer.
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Guide
Core Drilling Through Brick Walls
Cavity walls, solid Victorian walls, engineering brick, and mixed-hardness construction — UK brick types, bit selection, and depth extension technique.
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Safety
Diamond Core Drill Safety Guide
PPE requirements, electrical survey, machine anchoring, COSHH, CDM, and the specific hazards that make core drilling different from standard drilling.
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Guide
Core Drilling Through Tiles
Ceramic, porcelain, and natural stone — no hammer, low RPM, water cooling, and the start technique that prevents chipped glaze edges.
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Safety
Dust Extraction for Core Drilling
Class M vs Class H vacuums, dust shroud setup, COSHH requirements, and the HSE WEL for respirable silica on UK construction sites.
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Safety
Silica Dust Control in Construction
Silicosis, health surveillance obligations, the COSHH control hierarchy, and what HSE inspectors look for on UK drilling and cutting jobs.
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Technical
Core Drill Speed & RPM Guide
Correct RPM by bit diameter and material — full table from 38mm to 200mm for soft brick, dense concrete, engineering brick, and hard stone.
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Safety
Low-Vibration Drilling Methods
HAVS, the Control of Vibration at Work Regulations, EAV and ELV limits, and why diamond core drilling produces significantly lower vibration than percussion methods.
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Technical
Core Drilling Through Concrete
Concrete types, equipment selection, bond hardness, RPM settings, CDM obligations, and when post-tensioned concrete requires a structural assessment before drilling.
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Regulatory
Core Drilling Permits & Regulations
Planning permission, Building Regulations, CDM 2015, listed building consent, and the Party Wall Act — which regulations apply, and when.
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Technical
Drilling Through Rebar
What happens when a diamond bit hits steel, rebar-rated bit specification, technique during rebar contact, and what to do if the bit jams on reinforcement.
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Safety
Is Diamond Drilling Safe?
Safety comparison with percussion drilling, main hazards, DIY limits, and when the job requires a specialist contractor.
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Guide
Best Core Drilling Methods
Dedicated machine, SDS adaptor with diamond bit, or SDS hammer with TCT bit — which method suits your hole size and application.
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Technical
How Core Drilling Works
Diamond abrasion, bond matrix, peripheral speed, water cooling mechanics, and why rotation-only is non-negotiable for diamond core bits.
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